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(No Model.) l 3 Sheets-Sheet 1. W. LORENZ.

MACHINE FOR TREATING CARTRIDGE SHELLS. No. 294,055.

Patented Feb. 26, 1884.

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Wifnesses Jnvenfor '3 Sheets-Sheet 2;

(No Model.) I W. LORENZ.

MACHINE FOR TREATINGCARTRIDGE SHELLS.

Patented Feb. 26, 1884.

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, I A A Witnesses 3 Sheets-Sheet 3. w. LORENZ. MACHINE FOR TREATINGCARTRIDGE SHELLS.

Patented Feb.'26, 1884.

Nv PEIERS. Phntoiillmgraphcrv Washinglon. 04 a -No Mod-e1.

i NlTED STATES PATENT Oriucn.

MACHINE FOR TREATING CARTRIDGE-SHELLS.

SPECIFICATION forming part of Letters Patent No. 294,055, dated February26, 1884.

Application filed June 10, 1882. (No

model.) Patented in Germany June 29,1881, No. 17,333; in France August26, 1881, ms.

144,574; in Belgium October 3, 1881, No. 55,879; in England December 6,1881, No. 5,323, and in Austria-Hungary January T at whom it mayconcern.- I Be it known that I, WILHELM LORENZ, of Oarlsruhe,in theGrand Duchy of Baden, German Empire, have invented certain new anduseful Improvements relating to Machines for Treating Cartridge-Gases,of which the following is a specification.

This invention relates to improved machinery for simultaneouslybreaching or rimming and cutting and trimming both ends of cylindricalmetal cases, more particularly adapted to the treatment ofcartridge-cases, and also for expanding such ends at the same time whereoperation.

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required, the case being automatically held firmly and securely at itsmiddle during the The machine effects automatically the adjustment andtrimming of the cartridge or other case to the exact length required,the advance and withdrawal of the cutters, and the discharge from themachine of the finished arti- For these purposes the cartridgecases orsimilar articles to be treated are introduced into an inclined andcurved chute, in which they descend, arriving at the bottom between twoslides having steel checks at their inner ends, suitably formed forseizing and holding the cases. One slide is adjusted in position by ascrew, and is then secured by other setscrews. and levers in such mannerthat the cartridgecase on passing between the cheeks is pressed by thecheek of the last-named slide against the other one, so as to hold'itfirmly during the broaching operation. For accurately adjusting theextent of motion of the reciprocatcauses the lever to impart its ingslide, the spindle, through which motion is imparted to it from thelever, is provided with adjustable screw-collars and spring-washers.Before the cartridge-case is seen red firmly for the broachingoperation, it is temporarily held by the action of a spiral spring,which motion to the slide during the first part of the stroke, whileduring the latter part the lever bears directly on the slide through thebefore-mentioned spindle and collars. The said lever is always kept withits end bearing with an anti-friction roller against the driving-cam bymeans of volute springs. For feeding the cartridge-cases be- The otherslide is actuated by a cam the slides,

tween the checks of the slides, the chute is mounted near its upper endon a pivot, and its lower end has aspring-j aw, by which it temporarilyholds the lowest cartridgecase. The chute, being held in a raisedposition, is lowered by the action of a lever operated by a cam andconnecting-rod at the same time that the reciprocating slide is made toadvance, so

as to bring the lowest cartridge'case in the chute in position to begrasped by the cheeks of the slides as these close upon it. As soon asthis has been effected by the spring action of the slide, the chute israised by its cam, whereby its springaw slips from the lowestcartridge-case, which is held by the checks of the slides. At the sametime two lateral gageplates on the chute, which extend below the jaw,accurately adjust the position of the cartridge-case laterally betweenthe cheeks of the slides before it has been firmlygrasped, and

as the chute rises the spring-jaw closes upon the next followingcartridgecase, holding it ready for the next descent. The connectingrodthat imparts motion to the chute is connected to its lever by a screwadjustment, so as to accurately regulate themotion of the chute. Thechute is guided so as to be perfectly steady in its motion by means of afixed guide, within which a projection on the chute works up and down.7' The breaching and expanding operations having been completed, themovable slide again recedes, allowing the cartridge-case to fall into asecond chute,which delivers it into a receiving-box. The chute thenagain descends, and the slide advances for repeating the above-describedoperation. In the axial line of the cartridge-case, as this is held bythe slides, are two spindles carrying the cutters and tools to operateon the ends of the case. Jlhese spindles are carried in' hearings, andare so arranged as to be capable of advancing for operating on thecartridge-case when held by and then receding to allow it to drop. Thecutters are held in chucks or heads on the spindle, accurately adjustable by setscrews. One spindle carries a central sliding pin held byaspring, so that as the spindle advances the pin abuts against the end ofthe cartridge-case and pushes it so as to bear'with its rim against acollar on the slide, preparatory to causing the cutter of the spindle toout p or trim all the cases to a uniform length. The

forward motion of the cutter-spindle for this purpose is effected justbefore the final nip is put upon the cartridgecase by the slides. It ispreferred to employ this adjustment in combination with that effected bythe gage plates on the chute," but the one or the other IO adjustmentmay be employed alone. The adjustment and nipping of the cartridge-casebeing. effected as above described, the cutterspindles advance so as tobring the cuttersinto' action on each end of the case, and rotary mo- 5tion is imparted to them by pulleys and'belts. The to-and-fro motion ofthe spindles is ef fected by means of cams acting on levers on the lowerends of vertical shafts whose upper ends have forked levers engagingwith pinson loose collars on the spindles that are held betweenadjustable collars fixed thereon. The vertical shafts are acted upon byhelical springs tending to turn them, so as to withdraw the spindleswhen the cutting operation iscompleted. The shaft carrying the lastnamedcams and cams for actuating the slide, as above described,is geared byspur-gearing to a driving-shaft having fast and loose pulleys drivenfrom any convenient motor.

The above-described mechanism is mounted ona pedestalstand, permittingfree access to all sides of the machine.

The construction of the said machine will be readily understood onreference tothe ac- 5 companying drawings, which form a part of thisspecification, and represent what I coir sider the best means ofcarrying out the invention.

Figure l is afront elevation of the machine,

partly in section; Fig. 2, a plan view, partly in section. Fig. 3 is aside elevation of the machine. Fig. 4 is a central vertical section atright angles to Fig. 1. Fig. 4 is an enlarged detail section of partsshown in Fig. 4.. 5 Fig. 5 is a horizontal section of the framing. Fig.6 is a sectional plan taken somewhat above that at Fig. 5. The remainingfigures represent details 011 a larger scale. Fig. 7 is a front view,partly in section, of the chute 0 and cutters; Fig. 8, a front view ofthe chute and section of the reciprocating slide; Fig. 9, a centralvertical section on the line 00 0c in Fig. 8; and Fig. 10 is a planView, partly in section, showing the chute and slides and tools 5 5 fortreating the ends of the cartridge-case.

Similar letters of reference indicate corresponding parts in all'thefigures. Q represents the base of the framing. O is an upright pillar orhollow stem, and O a $9 table or extended head at the top thereof. Themechanism is mounted upon these parts. The cartridge-cases or otherarticles, (2, Figs. 7, ,9, and 10, to be operated upon, are introducedinto the chute A, from which they pass 5 one at a time between theslides B and B, which have at their inner ends suitably-formed cheeks, bI), for seizing and holding firmly a lever N N j tosetthe rod b out orin.

.the rod I)", has for this purpose a certain amount of play for itsprojecting ends in the medium of the springf only, causing the the leverthe spring f is further compresseduntil the pin If abuts against the endof the slot 12 so that the slide is now acted upon f directly by thelever, so as to effect the forci'-- ble holding of the article. I keptwith its roller 1- always pressed against with the advance of the slideB. A is for this purpose pivoted at h, and is raised by means of the rodi at the moment I when the article d is held loosely by the action ofthe spring f, as before described.

jecting case, (I. The slide B- isadjusted to the required position bythe regulatingscrew s, and is there secured by the screws 8 8 The slideB is reciprocated to and fro, actuated by the and cam M in such mannerthat the case (1, 011 passing between the cheeks b b, is

pressed by the check I) firmly against Z), so as to hold itsecurelywhile it is subjected to the I cutting-tools.

For accurately adjusting and determining the length of the stroke of theslide B, the

I spindle Z) thereof carries adjusting screw-nuts s s and s s, as alsothe loose washer and collar 2)".

The washer I) is loose upon the rod 12 The collar Z) has a sleeve, I),attached to it, which passes through the end of the slide B, isscrew-threaded, as shown, and is fitted. with the set-nuts s s, whichbear against the f end of the slide, and serve to set the collar 1) inorout upon the rod engage with threads upon the rod b and hear Theset-nuts s 3* against the end of the sleeveb, and thus serve Before thearticle d is firmly grasped by the slides, it is held loosely by theaction of the spring f on the advance of the slide. The pin Z), by whichthe lever N is connected to slotted holes 6 of the slide B, as at Figs.4 and 9, so that the pressure of the advancing lever is first conveyedto the slide through check I) to grasp the article for a time with ayielding hold, during which time the article can be accurately adjustedin position between the cheeks. On the further advance of The lever N Nis I the cam M by means of volute springs Z Z.

1 The lever is composed of two arms, N N, fixed on the same shaft T,which form practically a single lever, the upper arm, N, being forked,so as to allow the discharge-chute L through it.

to pass 1 The transfer of the articles (I from the chute A to thechecks 1) b is effected simultaneously The chute By this movement thejaw a, Fig. 9, of the chute A is caused to open, turning 011 the pin a,and allow the article (1, which has been held by the checks to slideoff, after which the jaw immediately closes again by the action of thesprings f f", thereby grasping the next lowest article in the desiredposition at the end of I the chute and preventing it from falling out.As the chute A rises, the gage-plate d prodown from its lower end,presses against the end of the article d, and adjusts IOC itlongitudinally between the cheeks b b, as indicated in Figs. 8, 9, and10, whereupon the cheeks b I) close firmly upon the article, and thecutters are brought into operation, during which time the chute Aremains raised.

To allow of the closing together of the checks 1) b, to seize thearticle held by its jaw while the chute A is lowered, the chute is cutout, as shown in Figs. 9 and 10. The rod i, by which the chute israised, is actuated by the lever N", whose roller 1" bears against thecam M. v

For the accurate adjustment of the chute A,

' the rod '6 is adjusted relatively to the-lever N by means of thescrew-nuts S S At the back of the'chute is a projection or stud, Z, thatslides within a fixed guide, 1, as the chute is moved up and down, so asto prevent anylateral motion of the chute and insure the accurate actionof the gage-plate (P. On the cutting of the article being completed, theslide B recedes and allows the article to fall into the discharge-chuteL, whence it passes into the box H; at the same time the chute Adescends to its lowest position again, so as to bring the axis of thenext article dheld thereby in line with the axis of the cutter-spindles,

and between the cheeks b b, whereupon the latter seize the said article,and the above-described operation is repeated.

The cutting operation takes place as follows: Simultaneously with theadvance of the slide B the spindles G and D, carrying the cuttingtools,also advance toward the ends of the article d. The tools marked m, n,and p revolve with their spindles, and are accurately adj usted in theheads or chucks on the latter by means of the screws u a. The spindle Ghas a centralpin, c, pressed forward against a collar by the spring f.On the advance of the spindle this pin butts against the end of thearticle (1, and pushes it while still held loosely between the cheeks bb, so as to bring the rim on the article against the face of the cheek.

By this means the cutting of all the articles to a uniform length isinsured. This adjustment having been completed,the cutter-spindlesfurther advance, so as to bring the cutters m, n, and 1) into action,the spring f of the pin 0 being compressed during such motion. The

spindles O and D are rotated by belts on the I pulleys V o and W '10,and are caused to advance by the action of the cams E and F upon leverst t on vertical axes g 9, having other levers, w 06, on their upperends, that are connected with the spindles G and D. The backward motionof the latter is effected by the helical springs y y on the axes g g,tending to turn these against the action of the cams. The shaft T isdriven by the spur-gearing R B from the main shaft T, the latter beingprovided with fast and loose pulleys K K, driven by a belt from anyconvenient mill-shaft or motor-engine.

I claim as my invention- 1. The feed mechanism for the cartridgecases,consisting of the pivoted chute A, having a spring-j aw, a, andgage-plate (1 in combination with the rod 2', lever N, and cam M, as setforth.

2. The combination of the cheeks b b, slides B B, and adjusting meanstherefor with the spring f, levers N N, and cam M, as set forth.

3. In a cartridge-finishing machine,the combination of the slide B androd 2) with the washer b sleeve I), having collar 1), and springs Z'Zand lever NN, as herein set forth.

4. The combination of the spindle C and spring-pin c with the cheeks bb, substantially as herein set forth.

In testimony whereof I have hereunto set my hand, at Berlin, Prussia,this 1st day of February, 1881, in the presence of two sub scribingwitnesses.

WILHELM LORENZ.

Witnesses:

G. GRONERT, BERTHOLD R01.

